Hello,
I'm trying to do this transformation,
from:
const WCHAR wstr[] = {'u','t','f','1','6','
','s','t','r','i','n','g','\0'};
to:
const WCHAR wstr[] = u"utf16 string";
I had hoped to be able to use an expression list for the array
initializer, but that produces a parse error. I know that technically an
array initializer is not an expression list, but it looks like one.
Is there another metavariable that I can use instead?
A way to workaround that would be to use something like:
@r@
typedef WCHAR;
identifier wstr;
constant ch;
position p;
@@
const WCHAR wstr[] = { ..., ch@p, ..., '\0' };
That would make the subsequent script:python rule run once for each
char. With some surprises though:
- The initializers ch get sorted before script:python runs. Thus the
position is needed to undo the sorting.
- More surprisingly, without @p the initializers get even deduplicated.
This workaround is doable but tedious. Before I go down that rabbit hole
I prefer to check if there's a better alternative.
thanks
bye
michael
const WCHAR wstr[] = {'u','t','f','1','6',' ','s','t','r','i','n','g','\0'};
@r@
typedef WCHAR;
identifier wstr;
constant ch;
position p;
@@
const WCHAR wstr[] = { ..., ch@p, ..., '\0' };
@script:python@
wstr << r.wstr;
ch << r.ch;
p << r.p;
@@
print(wstr, ch)
_______________________________________________
Cocci mailing list
[email protected]
https://systeme.lip6.fr/mailman/listinfo/cocci
